| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251020 | |
| Dongying Shengda | China national standards | MT | USD | 20251020 | |
| Shandong Shenchi Chem | China national standards | MT | USD | 20251020 | |
| Shandong Chambroad | China national standards | MT | USD | 20251020 | |
| DMZY Petroche | China national standards | MT | USD | 20251020 | |
| Binzhou Dayou Energy | China national standards | MT | USD | 20251020 | |
| Dongying Haike | China national standards | MT | USD | 20251020 | |
| Wanhua Chem | China national standards | MT | USD | 20251020 | |
| Dongying Yatong | China national standards | MT | USD | 20251020 | |
| Zibo Qixiang Chem | China national standards | MT | USD | 20251020 |
